The swelling up to about 90cm diameter, please use an inflatable slightly smallish. There is a very big impact balloon. It is most suitable for such events and concerts! rubber balloons, you may end up cracking due to unexpected [ Please read before order]. On had you understand it and understand beforehand, please order the number of leeway. There is a risk of suffocation or rubber balloon before inflating, such as pieces of rubber balloon that is broken and will jam in the throat of the infant. If a child is playing with a rubber balloon, we ask that an adult is always accompany. The rubber balloons, rubber will deteriorate significantly and will be placed in a place that may be exposed to high temperatures or direct sunlight hits. Thank you to store it in a cool and dark space as much as possible. color of the product is as close as possible to the actual color, but there is the thing that is slightly different due to your monitor. Please note.